Oil-filter.



No. 896,797. PATENTED AUG. 25, 1908.

A. BOWE.

OIL FILTER.

APPLICATION FILED DEG. 19,1907.

2 SHEETS-SHEET 2.

1 We, em

mute c 1m: uonms PETERS cm, wnsnmorou, D. r

UNITED STATES PATENT OFFICE.

AUGUST BOWE, OF PORTLAND, OREGON.

OIL-FILTER.

Application filed December 19, 1907.

To all whom it may concern:

Be it known that 1, AUGUST Bown, a citizen of the United States,residing at Portland, in the county of Multnomah and State of Oregon,have inventedcertain new and useful Improvements in Oil-Filters, ofwhich the following is a specification, reference being had to theaccompanying drawings.

My invention relates to improvements in oil-filters; and an object of myinvention is to provide an oil-filter which will be simple inconstruction, cheap in manufacture and efficient in operation and whichwill require practically no attention during use.

In the drawings illustrating the principle of my invention and the bestmode now known to me of applying that principle, Figure 1 is a centralvertical section; Fig. 2 is a section on line AA of Fig. 1; Fig. 3 is asection on line B.B of Fig. 1; Fig. 4 is a detail of the oil-receiver;and Fig. 5 is a detail of the filter-pan.

The oil-tank a supports at its upper end the funnel-shaped oil-receiverb fromwhich extends downwardly nearly to the bottom of the oil-tank aspout 0 upon the outside of which is formed a series of helical flangesd the distance between the upper end of each of which and the lower endof the flange next above is about three-fourths of an inch (Fig.

oil-tank a a filter-pan e having an inner central compartment f and anouter annular compartment g, both of which compartments f and g arefilled with granular material through which the oil filters. Between thecompartments f and g is an annular settling chamber h in which the oilis allowed to settle in passing from the inner compartment f to theouter compartment 9 (Fig. 1). From the center of the filter-pan eextends downwardly a separator-cylinder 2' closed at its bottom and fromnear the bottom of which extends uplwardly a riser-pipe j the upper endof w ich projects into the recess k formed in the bottom of the innercentral compartment f. The recess 7c communicates with the outlet pipem. At the bottom of the cylinder 71 is a separating plate at the upperedge of which extends between the lower end of the spout c and the wallof the cylinder i near the point of connection of the pipe 7' therewith(Fig. 1). Below the filter-pan e is mounted a settlingpan 0 at thecenter of which is provided an upwardly-extending ring-shaped flange orwall 1). At the bottom of the oil tank are Specification of LettersPatent.

Below the oil-receiver is mounted in the Patented Aug. 25, 1908.

Serial No. 407,157.

provided the settling pans g and 1", the former being within the latter.A suitable spigot s is fitted to the bottom of the oil-tank for drawingoff the filtered oil.

The crude oil is poured into the oil-receiver or reservoir 1) and flowsdown the centralspout or funnel c from which it pours out into theclosed lower end of the separator-cylinder i. Here the water and the oilseparate, the water 6 5 flowing over the baffle plate n and up throughthe riser-pipe and outlet conduit m. The oil flows up the underside ofthe helical flanges d and then pours out of the upper end of thecylinder 6 into the inner strainer compartment f the lower portion ofthe wall of which is formed with holes 25 which allow the oil to trickleinto the annular settlingchamber h. The oil overflows from. this chamberinto the outer strainercompartment g and drips through the holes a inthe bottom of that chamber down upon the settling pan 0. Here the oilsettles again and then overflows the wall 2) and falls into thesettling-pan (1. Here it settles for a third time and then overflowsinto the settling-pan r, from which it overflows into the main chamberof the oil-tank and out through the spigot s.

In starting the filter, water is first poured 5 into the oil-receiver1), until it pours out through the outlet m, thereby insuring that theseparator cylinder 71 will be full of water to within four or fiveinches of its top.

The filter is provided with a suitable gage glass 8.

I claim:

1. An oil-filter consisting of the combination. with an oil-tank, of' anoil-receiver mounted therein and provided with a downwardly-extendingspout on the outside of which is formed a series of helical flanges; acylinder closed at its bottom and open at its top, said cylindersurrounding said spout and flanges; a riser-pipe connected with the bottom of said cylinder for the discharge of the water; a filter-pan havingthree compartments one within the other, the top of said cylinderprojecting into the innermost of said compartments; and a series ofsettling-pans mounted in said oil-tank below said filteran. p 2. In anoil-filter, the combination with means for separating the water from theoil, of a filter-pan into which the separated oil flows, said filter panbeing formed with a plurality of compartments the innermost andoutermost of which contain material for filtering the oil and theintermediate one of which communicates with the innermost one and servesas a settling chamber from which the oil overflows into the outermostone.

3. Means for separating the oil from the water consisting of thecombination of an oilreceiver provided with a spout formed on itsoutside with a series of helical flanges; a cylinder closed at itsbottom for the reception of the crude oil discharged by said spout, saidcylinder surrounding said helical flanges; and a riser-pipe leading fromnear the closed bottom of said cylinder for the discharge of the water.

4. Means for separating the oil from the water consisting of thecombination of an oilreceiver provided with a spout formed on itsoutside with a series of helical flanges; a cylinder closed at itsbottom for the reception of the crude oil discharged by said spout, saidcylinder surrounding said helical. flanges; a riser-pipe leading fromnear the closed bottom of said cylinder for the discharge of the water;and a separating plate which is arranged in said cylinder opposite thelower end of said riser-pipe and over which the water flows in passingfrom said cylinder into said riser-pipe.

5. The combination in an oil-filter with means for separating the oilfrom the water, of a filter-pan into which the separated oil isdischarged; and a settling-pan mounted below said filter-pan and formedwith an upwardly-extending wall over which the oil 'flows in passingfrom the settling-pan.

6. Means for cleaning the oil consisting of the combination of acylinder provided in its interior with a series of helically-disposedplates; a filter-pan into which said cylinder discharges at its upperend; and a settling pan which is formed with a hole for the passage ofsaid cylinder and with an upwardlyeXtending wall surrounding said hole;the oil dripping from said filter-pan into said settling-pan.

7. Means for cleaning the oil consisting of the combination ofvacylinder provided in its interior with a series of hel1callydisposedplates; a filter pan into which said cylinder discharges at its upperend; and a settlingpan which is mounted below said filter-pan and intowhich the oil drips therefrom.

8. An oil-filter consisting of the combination with an oil-tank, of anoil-receiver mounted therein and provided with adownwardly-extendingspout; a separator-cylinder which surrounds said spout and into whichthe latter discharges the crude oil, said separator-cylinder having aclosed bottom; a series of helically-disposed plates arranged betweenthe walls of said cylinder and spout; a riser-pipe for the discharge ofthe water separated, said riser-pipe communicating with the lower partof said cylinder; a filterpan into which said cylinder discharges at itsopen upper end; and a settling-pan formed with a hole through whichextend said cylinder and riser-pipe, said settling-pan being mounted insaid oil-tank below said filterpan and receiving the oil dripping fromthe latter.

In witness whereof I have hereunto set my hand at said Portland Oregonthis fifth (5th) day of December, A. D. 1907, in the presence of the twoundersigned witnesses.

AUGUST BOWE. Witnesses A. E.CLARK, 7 WM. R. MCGARRY.

